Combined wrench and pipe-tongs



c. ANDERSEN. COMBINED WRENCH AND PIPE TONGS.

APPLICATION FILED JULY 28, 1919.

1,395,785. PatenteflN0v.1,1921.

nenran stares cnnrsrnn- ANDERSEH,

or nunnr, DENMARK.

i COMBINED WRENCH AND PIPE-TONGS.

Application filed July as,

To all whom it may concern Be it known that I, C -rnisrn-N ANnnRsnn,

a subject of the King of Denmark, and resident of Hurup, in the State ofDenmark, have invented certain new and useful Improvements in CombinedWrenches and Pipe-Tongs, of which the following is a specification. c

The present invention concerns a combined wrench and pipe-tongs of thefollowing description. A nut is placed in the hole of a spanner shaft,which carrles one jaw, a spindle passes through the hollow of the wrenchshaft and the nut, and 1s connected with the other jaw so as to make itpossible to vary the span of jaw. Wrenches of'this description haveseveral defects, 0. 9., it is generally difiicult to adjust the jaws soas to fit on the nut; if the span be too small,

the jaws will not slide on the nut; if it be too large the jaws willslide over the edges of the nut and spoil them, and yet not turn,besides it is troublesome and will take some time to decrease andincrease the span of jaw to any considerable extent, as it is onlypossible to touch a small part of the nut, i. 6., the part projectingover the wrenchshaft. The first defect is remedied by the presentinvention, as the jaw of the wrench shaft can be adjusted parallelly inrelation to the adjustable jaw, the second defect by an arrangement, bymeans of which that part of the wrench shaft surrounding the nut thatvaries the span of jaw can be turned away from thenut, and consequentlypartly disclose it, and thus the nut may pass up and down the spindlewithout disarranging it.

The invention is seen on the drawing in one mode of construction:

Figure 1 shows a side-view of the wrench with the jaws in closedposition.

Fig. 2 a side-view of the wrench set on a nut,

Fig. 3 the same viewed from the side, and the lower part of the wrenchshaft. turned aside, v

Fig. 4 the same viewed from above, and

Fig. 5 a section of the movable jaw of the wrench shaft on the line A--A in Fig. 3.

1 is the wrench shaft, made in the ordi nary way of a folded steelplate'and joined to a connecting piece 2, thus forming a guide for anadjustable bar 8 of rectangular section having at one end a jaw 4, whichis provided with saw-teeth 5-6-7 and at the Specificationcf LettersZPatent.

. Patented Nov. 1, 1921.

1919. Serial No. 313,672.

other end a spindle 8 provided with a screw-thread and a circular nut 9,which may. be turned in a hole 21 of the wrench shaft 1. The section ofthe connecting piece 2 is at the top shaped'like a cross, Fig. 5,

thus forming a rest for the jaw, 10 which is Ushaped and provided withthe saw-teeth 1112+13 The rests between jaw 10 and the connecting piece2 form an angle with jaw 4, so that the span of jaw will be decreased orincreased by moving the jaw, 10 of the connecting piece 2. J aw 10 canbe adjusted by means of a double armed-lever 14, the fulcrum of which ispin 15 in wrench shaft .1. One arm 22 of the lever 14 is by means of apin 16 connected with jaw 10, wlnlethe other arm 23, is worked upon by aspring 17, in such a manner that jaw 10 Wlll automatically decrease thedistance between itself and jaw 4. In order to prevent jaw 10 fromfalling from the connecting piece 2 a pin 18, movable in an oblong holein the connecting piece 2, is carried through jaw 10. The lower part 19,of the wrench shaft 1 is movable around a pin 20, thus making itpossible to partly disclose the nut 9, because two of the conterminoussides,

'which form the hole 21, for the nut 9, are

formed by the lower'part 19, of the wrench shaft 1.

It will be apparent from the foregoing descr ption that the object ofproviding the shiftable end member 19 is to enable facility of adustment ofthe sliding jaw 4. Thus, when it is desired to open thewrenchfrom its: full closed position to any considerable extent, insteadof turning the nut 9 by the finger and thumb, which process would berather slow, the part'19 is shifted to the position shown in Fig. 3leaving the nut 9 in such. accessible position as to permit it to beuickly-run along the threaded shank 8. Th s action is in the nature of aspinning action of the nut which is not obtainable when it is operablewith the shiftable piece 19 in the closed position of Figs. 1 and 2.When the general adjustment desired is reached, piece 19 is returned toits normal fixed. Likewise, when it is desired to close the aws of thewrench this may be also quicklyaccomplished by again opening the part 19and allowing the jaw 4 to slide into its closed position freely. The nut9 may be quickly run along the shank 8 in the opposite direction and thepart 19 finally returned to its normal position. It will furthermore beapparent that the fine adjustments of the wrench jaws are obtainable intwo diiierent ways, one by the screwing of the nut 9 and the other bythe operation of the slidable jaw 10 through the lever 23. When makingthe adjustment the operators hand is enga 'ed around the lever 28 topull the j aw 10 outwardly and when the general 7 adji ment of. the jawson the object is obtained the lever 23 is released, permitting the jaw10 to move inwardly on itsrangle guide piece, thus effectively grippingthe object. The greater the stress imparted to the object operated upon,the greater the pressure of: the jaw 10 against saidobject. An inventionof this character is very effective as a pipe wrench having in view thisoperation of the jaws. V

W hat I claim is: I

1.. In a wrenchof the class described, a handle, a jaw slidahlymounted'for movement longitudinally of the handle and having athreaded'shanlr, a nut on said shank for adjusting the jaw as aforesaid,asecond jaw slidable transversely of the handle and first mentioned jaw,a lever connected 7 to the transversely sliding jaw for actuating thesame, spring means cooperating with the lever and tending to shift thetransversely sliding jaw toward the handle, and a movable section on thehandle cooperating with the shank nut to hold the longitudinally slidingjaw in adjusted position, said section being-shiftable to free the lastmentioned jaw for movement.

2. In a wrench oftheclass described,'a handle, ajaw slidahly mountedthereon for movement longitudinally of said handle, said jaw having athreaded shank and a nut thereon cooperative with the handle forimparting the longitudinal movement aforesaid, a second jaw slidabletransversely of the handle, a lever connected to said second jaw foractuating thesame and fulcrumed on the handle, a pivot pin on whichsaidlever is fulcrumed, the end of the lever having pivotal connectionwiththe slidable jaw,

and a, further connection intermediate the slidable aw and the handlefor guiding the jaw in its movements under the actuation of the lever. pM V In testimony whereof I affix my signature.

CHRISTEN ANDERSEN.

